Interesting find! Speaking of model 30s, whats the deal with the early Lux carpet tools? I'm wondering about the evolution of these things. I've seen probably more than a half dozen types prior to the 1954 flip over tool. Some seem to be out of order, like the one shown here which has no ridges on top, yet theres a model XII floor tool that does. In later years, after the war, it seems they went back to this style, and then changed it again in the 50s for the LX. Now, the simple floor tool like the one in this auction, seems to have gone through 3 redesigns that I'm aware of, one which is very simple with no bumpers or unnecessary styling except for the logo.
If you start including painted Canadian versions of the late 40s tool it gets really crazy and the number is probably more like 12+. So, what are your findings in this area?